Spring-tire.



J. KRAVOAK.

SPRING TIRE.

APPLICATION FILED OUT. 7, 1913.

4 mU L J M n m M ,3 Na R A N U p I :A mm 2 dm m r] h mu v MINE 885s J. KBAVOAK.

SPRING TIRE.

APPLICATION FILED 002B, 7, 1913.

1,109.995. nuanced Sept. 8, 1914.

2 SHEETSBHEET 2- WITNESSES IIWHITOR I; (gm mi,

\ X V I I JAHN KRAVCAK, OE ?ATEBSGN, NEW" SPRING-(33E.

To all whom it may concern:

Be it known that I, JAHN KRAVGAK, a subject of the Emperor of Austria-Hungary, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Spring-Tires, of which the following is a specification. I

T his invention relates to spring tires of the class in which spaced inner and outer annular members are normally maintained in concentricity with each other by a system of elastic means arranged between them, and it consists principally in certain impro'vements in the means employed in such tire structures for maintaining the said members against relative lateral displacement, while allowing them to shift out of concentrlcity in the yielding of said elastic means.

In the accompanying drawing, Figure 1 is a side elevation .of a wheel provided with the improved tire, which is shown partly in section; Figs. Qand 3 are sectional views of the wheel inradii respectively through one of the means for maintaining the tire members against relatively lateral displacement and through one of the elastic means; Figs. and 5 are side elevations of fragments of the wheel and the rim 0; Fig. 6 shows adetail employed in connection with either the elastic means or the means for maintaining the .tire members against lateral displace ment; Figs. 7 and 8 show in detail-the means for maintaining said tire members against lateral displacement; and Fig. 9 shows in plan and side elevation one of the bearing members 0.

To the felly Z) of the whee} a an annular section or rim 0 is'snugly fitted, one of these parts having recesses d and the other lugs e which enter said recesses and coact therewith to interlock the said parts against relative rotary movement. Upon removin the screws f the section 0 may be with raw/n from the felly b by displacement in the direction of the length of the axis of the wheel.

9 is an annular cross-sectionally U-shaped be reinforced in any desired manner, and

whichis preferably attached to the 'rim 0'- by the lateral inwardly projecting flanges or side portions h preferably integral with the member 9, the free edges of said flanges be-.

ing fitted into rabbets 11 formed in said rim 0 and secured therein b the. screwsj or otherwise. -When the w eel is in use and Specification of Letters Eatent.

Application filed October 7, 1918.

Serial lii). 793,532.

wardly into the housing a which is formed by the flanged member and member c.

Against the inner surface of member 51 and Q secured in place by nuts on on the studs m,

which penetrate them, are bearing members 0, each having a boss 39. Radially opposite each bearing member 0 and secured to the periphery of the member 0 by the screwsg is another bearing member 7* having a boss 8. Between the members of the pairs of bearing members 0 and r are arranged the spiral springs It, kept in place by having their ends fitted over the bosses p and s of said bearing members. 1 I

To preserve the wheel members 0 and g against lateral displacement, while allowing them to shift out of concentricity in the yielding of the springs, Iaprovide the following means: Emheddedin the tread of the member 9 is a series of plates at having inwardly protruding threaded studs 21 and being otherwise substantially similar to the plates 70 already described. Penetrated by the studs 0 and secured in place against the inner surface of the tread of member 9 by the nuts to on'said studs are the plates w having inward projections 31. Secured to the' periphery of'the rim 0 in coincidence with the plates w and by the screws 2 are the plates 2, each having'a pair of outward projections 3 receiving between them the projections y. The projections y. fit rather snugly between theprojections 3, so that the rim member a and casing or shoe member .g in efi ect are interlocked against rela- ".tively lateral displacement. leather or rubber shoe or casing, which may The substantially telescoped disposition of the parts 3 and 3 may be maintained byproviding the part. y with a slot 4 and the parts 3 with slots 5 at right angles to the slot .2, said slots being penetrated by the bolt 6, which, if desired, may directly enetrate blocks 7 arranged to slide in mi slots (Fig. 2 Ehus,

'alternatingwith the several springs, the

wheel members a and g are in sheet prothe member g at radia point of the Law? vided with supports which bear laterally against each other to prevent relatively lateral displacement of said memberspwhile, to an extent limited by the bolts 6, said supports are susceptible of movement circumferentially and radially of the wheel.

trading from said tire radially inwardly, bearing members arranged within said space against the inner face of the tire each opposite a plate and penetrated by the studs thereof, nuts screwed on said studs and holding each bearing member against the Having thusfully described my invention, inner face of the tire, other bearing memwhat I claim as new and desire to secure by bers r fixed respectively opposite the first Letters Patent is: bearing members to the rim, the bearing In a vehicle wheel, the combination of a ,members 0 and 7' respectively having inwardly and outwardly projecting bosses, and spiral springs arranged between each two bearing members 0 and 7 and each fitted at its ends over the bosses thereof.

rigid annular rim, a tire formed of yielding material and sun-minding the rim, said tire being open continuously on the inside, having its edges secured to the rim, and forming with the latter a continuous space, elongated plates arranged in a series around the in presence of two witnesses. axis of the wheel and each extendmg longi- JAHN KRAVGAK.

tudinally or and embedded in and wholly Witnesses: enveloped by the tread portion of the tire JOHN W. STEWARD, and having at each end .a threaded stud pro- NM. D.

topics of this patent may be obtained for five cents each, by addressing the Commissioner of latents,

Washington, D. C.

In testimony whereof I ailix my signature 

